Mitsubishi pajero io 4g93 gdi auto engine idle so high 1800 rpm. what should I do? somebody help me please.

NO YEAR TOLD
NO VIN TOLD
NO COUNTRY TOLD (EFFECTS EFI THIS)
throttle pedal (engine ) is weak or transmission slip. tests prove this.
there are 6 variants of this engine.
no transmission told ,make,model. not even STICK or AUTO tranny

The 4G93 is a 1.8 L (1,834 cc) engine available in both SOHC and DOHC versions. Turbocharged variants are also produced. In mid 1996 Mitsubishi released a gasoline direct injection (GDI) version of the 4G93. This GDI model saw a production of over a million units though it was a heavy polluter therefore only sold in the Japanese market. A partially cleaned up version (with less power) was later sold in Europe, and was among the first of the modern GDI engines. It brought good fuel economy and, if well serviced, long engine life.

You can try a fuel injector cleaner or flushing the system both available here at Presley's Service Centre and it may just turn off your Check Engine light. ... A faulty sensor will also make the Check Engine light turn on.

https://www.presleysauto.com/check-engine-light/

Check the spark if you have fuel pressure ,all the best.

Don't worry I'm sure you will get the solution of your problem, just check the link I attached mitsubishi pajero

online manual here Mitsubishi 4G9 User Manual

Test/check your ISC, make sure you have no vacuum leaks, reset the base idle screw, test/check your throttle position sensor.

4g93 1.8GDI pajero IO H76W- The correct spark plug is BKR6EKUC

idle air control valve or your fact idle valve is not working properly, all two of these are housed in the throttle body.You can try cleaning the throttle body firet if it dont work you knpw what to do. Good luck.

sounds like the cabbruter is losing pressure cheak tubes may be lose or damaged

my 1999 pajero to smokey what should i do